Silicone Quaternium-18
Silicone Quaternium-18 is a cosmetic ingredient used as a skin conditioning - emollient, hair conditioning agent. It is used in 55 products in our dataset. It is regulated in the EU (listed in a Cosmetics Regulation annex).
| INCI name | SILICONE QUATERNIUM-18 |
| Function | SKIN CONDITIONING - EMOLLIENT, HAIR CONDITIONING |
| Prevalence | 55 products (0.06% of dataset) |
| Most used in | Haircare |
| EU status | Restricted (annex ) |
| Monthly searches | 40 |
Used in
Styling Creams & Sprays 34.5%Heat Protectants 14.5%Leave-in Treatments 12.7%Shampoos 10.9%Conditioners 9.1%Hair Masks 9.1%
Frequently asked
- What does Silicone Quaternium-18 do in skincare?
- Silicone Quaternium-18 functions as a skin conditioning - emollient, hair conditioning agent in cosmetic formulas.
- Is Silicone Quaternium-18 allowed in cosmetics?
- Yes, but it is regulated in the EU — it appears in a Cosmetics Regulation annex with usage conditions.
- What products contain Silicone Quaternium-18?
- It is most commonly found in Haircare products, especially styling creams & sprays (34.5% of its uses).
Manufacturers with experience using Silicone Quaternium-18
Match with vetted US contract manufacturers that have hands-on experience formulating with this ingredient.